[Bug libstdc++/57585] New --enable-clocale model using POSIX 2008

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57585

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Separately, it would be good to provide a libintl-based implementation of
std::messages, for targets where that's not part of glibc.